Permanent way



June 5, 1923.

M. MATTHAEI PERMANENT WAY Filed April 12. 1922 Patented June 5, 1923.

UNITE STATES MAX MATTHAEI, oFcAssEL-wILHELMsHoHn, GERMAKY.

PERMANENT WAY.

Application filed April 12, 1922.

T 0 all whom it may concern:

Be it known that I, Max MATTHAEI, a citi zen of the German Republic, residing at Casselilhelmshohe, Germany, have invented certain new and useful Improvements in Permanent lVay, of which the following is a specification.

This invention relates to a permanent way for railway track consisting of a combination of cross-sleepers and longitudinal sleepers, the cross sleepers being constructed as twinsleepers and connected with the longitudinal sleepers situated in the same plane as the cross sleepers and interrupted at the points of intersection, to form a continuous rigid frame. Owing to this construction'it is possible to place the cross sleepers at a far greater distance apart than normally whereby material is economized and the repair of the track facilitated. The twin-sleepers are connected the one with the other in the well known manner and loaded by broken stones and gravel so that, notwithstanding the great distance between the cross sleepers, the required resistance against creeping of the rails is ensured,

Although by this construction a rigidity of the sleepers is ensured which is sufficient for the normal strain it is necessary to provide for any excessive abnormal strain, which could occur for instance at the braking or creeping. With this object in view tiemembers are provided which connect the heads of adjacent twin cross sleepers situated at the two sides of the track.

A form of construction of the invention is shown by way of example on the accom panying drawing, wherein Fig. 1 shows in plan view part of the improved permanent way.

Fig. 2 is a longitudinal section of Fig. 1.

Figs, 3 and 4 are cross sections (on an enlarged scale) respectively on lines AB and (3-D of Fig. 1 viewed from the left.

The permanent way consists of twin cross sleepers h, a, longitudinal sleepers a, Z) inserted in the same and tie-members 0. The individual sleepers h, i of the twin cross sleepers are connected the one with the other at the bottom by a plate of sheet metal 9, designed to be loaded with considerable masses of broken stones and gravel. The twin cross sleepers form thus heavy, almost immovable supports for the rails d, e. Be-

Serial N0. 551,993.

tween two twin cross sleepers h, 71 pieces a, b of wooden longitudinal sleepers are inserted at the same level as the cross sleepers, the rails d, 6 being fixed upon the same.

The ends of the twin cross sleepers h, i, are interconnected by a shoe is which has a thickened projection in which the corresponding tie rod 0 is adjustably mounted. These tie rods extend below the track from one end of one twin cross sleeper to the op posite end of the adjacent twin cross sleeper.

The heavily loaded twin cross sleepers ll, 2' form, together with the longitudinal sleepers situated under the rails and rigidly connected with the twin cross sleepers a rigid frame which is almost immovable. The tie rods serve to ensure a better staying against longitudinal forces, so that the rails rest upon an almost immovable support. The wear and deterioration by the rolling stock are thus considerably reduced and limited almost exclusively to the rail heads.

This presents the advantage that the expensive sleepers last longer than the rails and that the cross section of the rails could be reduced for the same load as they are continuously supported. The length of the twin cross sleepers could be reduced also wherefrom results economy in material, A further advantage is that the broken stones and gravel are better preserved as, owing to the greater distance between the twin cross sleepers they are no longer put under double strain by every load.

In the improved permanent way the creeping of the rails is considerably reduced by the assembling of great weights and the track remains more stable so that less maintenance work is required and the expenses are reduced.

I claim Improved permanent way consisting of frames composed of cross sleepers and of longitudinal sleepers comprising in combination frames the longitudinal sleepers of which are situated in the same plane as the cross sleepers, all sleepers of one frame being rigidly connected the one with the other, longitudinal sleepers between two adjacent frames inserted in the corresponding cross sleepers of said frames and situated in the same plane as these cross sleepers for determining the distance between the two frames so that of every two adjacent cross sleepers a ios twin cross sleeper 'is formed, a plate of sheet- In testimony whereof I affix my signature iron fixed to the bottom surfaces of the cross in presence of two Witnesses. sleepers of each twin cross sleeper and masses of broken stone and gravel filled into the MAX MATTHAEI' 6 open eases formed by each twin sleeper and Witnesses:

its bottom plate in order to produce heavy THOS. H. ANDERSON,

supporting points for the rails.

BASIL E. SAVARD. 

